Kalence Bluetooth 5.4 Hearing Protection Earmuffs

1. Introduction

Thank you for choosing the Kalence Bluetooth 5.4 Hearing Protection Earmuffs. This manual provides essential information for the safe and effective use of your new device. These earmuffs are designed to provide superior hearing protection while allowing you to enjoy audio content and manage calls in noisy environments. Please read this manual thoroughly before use and retain it for future reference.

2. Safety Information

Always follow basic safety precautions when using this product to reduce the risk of injury or damage.

• Do not modify or disassemble the earmuffs. Unauthorized modifications may compromise safety and void the warranty.
• Keep the earmuffs away from extreme temperatures, direct sunlight, and moisture.
• Do not expose the earmuffs to fire or dispose of them in fire, as the battery may explode.
• Ensure the earmuffs are properly fitted to achieve the stated Noise Reduction Rating (NRR 26dB / SNR 30dB). Improper fit will reduce effectiveness.
• Clean the earmuffs with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
• If the earmuffs are damaged, discontinue use immediately.
• This product is not a toy. Keep out of reach of children.

3. Package Contents

Verify that all items are present in your package:

• Kalence Bluetooth Hearing Protection Earmuffs
• Carrying Bag
• User Manual (this document)
• 3.5mm Audio Cable
• USB Charging Cable

Figure 3.1: Package Contents

4. Product Overview

Familiarize yourself with the components and controls of your Kalence Hearing Protection Earmuffs.

Figure 4.1: Kalence Hearing Protection Earmuffs

Figure 4.2: Controls and Ports

Key Features:

• Bluetooth 5.4 Technology: Provides a stable, fast, and wide-range wireless connection.
• 120 Hours Playtime: Extended battery life with a 1200mAh rechargeable battery.
• Quick Charging: Fully charges in approximately 2 hours.
• Wired Mode: 3.5mm AUX input for continuous use without battery.
• Large Button Design: Easy operation even when wearing work gloves.
• Hands-Free Calling: Built-in microphone for clear calls.
• Voice Assistant Support: Compatible with Siri and Google Assistant.
• High Noise Reduction: NRR 26dB / SNR 30dB certified for effective hearing protection.
• Battery Power Reminder: Voice prompts for battery level (low/medium/high).

5. Setup

5.1 Charging the Earmuffs

Before first use, fully charge the earmuffs. A full charge takes approximately 2 hours.

1. Connect the small end of the USB charging cable to the USB Charging Port on the earmuffs.
2. Connect the large end of the USB charging cable to a USB power adapter (not included) or a computer's USB port.
3. The LED indicator light will show charging status (e.g., red for charging, blue for fully charged). Refer to the LED indicator section for specific light behaviors.

Figure 5.1: Charging the Earmuffs

5.2 Powering On/Off

• Power On: Press and hold the Power/Multi-function button for approximately 3 seconds until you hear a power-on prompt and the LED indicator light flashes.
• Power Off: Press and hold the Power/Multi-function button for approximately 3 seconds until you hear a power-off prompt and the LED indicator light turns off.

5.3 Bluetooth Pairing

Pair your earmuffs with your Bluetooth-enabled device (e.g., smartphone, tablet).

1. Ensure the earmuffs are powered off.
2. Press and hold the Power/Multi-function button for approximately 5-7 seconds until the LED indicator light flashes blue and red alternately, indicating pairing mode.
3. On your device, enable Bluetooth and search for new devices.
4. Select "EP015" from the list of available devices.
5. Once successfully paired, the LED indicator light will flash blue slowly, and you will hear a connection prompt.

Note: The earmuffs will automatically attempt to reconnect to the last paired device when powered on. If connection is lost, they will enter pairing mode after a short period.

6. Operating Instructions

6.1 Music Playback

• Play/Pause: Short press the Power/Multi-function button.
• Next Track: Short press the Volume Up (>) button.
• Previous Track: Short press the Volume Down (<) button.
• Volume Up: Press and hold the Volume Up (>) button.
• Volume Down: Press and hold the Volume Down (<) button.

6.2 Call Management

• Answer Call: Short press the Power/Multi-function button when an incoming call rings.
• End Call: Short press the Power/Multi-function button during a call.
• Reject Call: Press and hold the Power/Multi-function button for 2 seconds when an incoming call rings.
• Redial Last Number: Double-press the Power/Multi-function button.

Figure 6.1: Hands-Free Calling

6.3 Voice Assistant (Siri/Google Assistant)

To activate your device's voice assistant:

• Triple-press the Power/Multi-function button.

6.4 Wired Mode (AUX Input)

You can use the earmuffs in wired mode even if the battery is depleted.

1. Connect one end of the 3.5mm audio cable to the 3.5mm Audio Jack on the earmuffs.
2. Connect the other end to the audio output jack of your device (e.g., MP3 player, phone).
3. In wired mode, Bluetooth functions are disabled, and audio is transmitted directly via the cable.

7. Maintenance

7.1 Cleaning

• Wipe the exterior of the earmuffs with a soft, slightly damp cloth.
• Do not use abrasive cleaners, solvents, or strong detergents, as they may damage the surface or internal components.
• Ensure no liquid enters the charging port or audio jack.

7.2 Storage

• When not in use, store the earmuffs in the provided carrying bag to protect them from dust and scratches.
• Store in a cool, dry place, away from direct sunlight and extreme temperatures.
• If storing for an extended period, charge the battery every 3-6 months to maintain battery health.

8. Troubleshooting

9. Specifications

Figure 9.1: Key Specifications Comparison

10. Warranty and Support

Kalence products are designed for durability and performance. For warranty information and customer support, please refer to the contact details provided with your purchase or visit the official Kalence website. Keep your proof of purchase for warranty claims.

For further assistance, you may contact Kalence Direct, the seller, through the Amazon platform or their official support channels.

Note: Warranty terms and conditions may vary by region.